Restore drill-through on sale and invoice reports

account_usability/account_invoice_report.py

@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+# Copyright 2018 Akretion (http://www.akretion.com)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import models, fields
+
+
+class AccountInvoiceReport(models.Model):
+    _inherit = 'account.invoice.report'
+
+    number = fields.Char(string="Number", readonly=True)
+
+    def _sub_select(self):
+        select_str = super(AccountInvoiceReport, self)._sub_select()
+        select_str += ", ai.number"
+        return select_str
+
+    def _select(self):
+        select_str = super(AccountInvoiceReport, self)._select()
+        select_str += ", sub.number"
+        return select_str
+
+    def _group_by(self):
+        group_by_str = super(AccountInvoiceReport, self)._group_by()
+        group_by_str += ", ai.number"
+        return group_by_str